E. V. Shel’deshova, A. A. Churaev, E. V. Bondar’, P. A. Ryapolov
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Comparative Analysis of Experimental Methods for Measuring the Magnetoviscous Effect
The viscosity of magnetic fluids was studied using a capillary viscometer of our own design and the method of oscillating volume of magnetic fluid in a magnetic field. Samples were tested on various carrier liquids—kerosene and polyethylsiloxane—with a volume concentration φ of the solid phase from 19 to 2.5%. The developed setup based on a capillary viscometer allows viscosity measurements in the magnetic field strength range from 20 to 350 kA/m. Measurements based on oscillations of the system occur in the range from 150 to 900 kA/m. It was experimentally established that the results obtained using these methods agree with each other, which allows us to conclude that both methods provide an identical estimate of the viscosity of a magnetic fluid in a magnetic field.
期刊介绍：
Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.
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